Considerations To Know About Laser Crystal
Considerations To Know About Laser Crystal
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The most common laser-active exceptional earth ions and host media along with some typical emission wavelengths are shown in the following desk:
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Laser crystals are optical crystals �?ordinarily one crystals (monocrystalline optical resources) �?which happen to be employed as get media for reliable-point out lasers. Normally, They are really doped with either trivalent rare earth ions or changeover metallic ions.
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
Which geometry, dopant and doping focus of the gain medium are most advantageous depend upon various factors. The available pump source (form of laser diode or lamp) as well as envisaged pumping arrangement are crucial things, but the material by itself also has some influence. As an example, titanium–sapphire lasers should be pumped with significant intensities, for more info which the form of the transversely cooled rod, operated with fairly smaller pump and laser beam diameter, is more acceptable than e.
晶体的光学质量对激光器的有效运行至关重要。晶体中的缺陷或杂质可能导致光散射、吸收甚至损坏晶体。高光学质量确保了稳定和高质量的激光束。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
The most doable doping concentration can rely strongly over the host material and its fabrication process.
激光晶体的效率在很大程度上依赖于某些属性，这些属性不仅限于其基本组成。这些特性决定了产生的激光光束的质量和随后的应用。
热膨胀和收缩系数对确定激光晶体的热透镜特性至关重要。最小化热透镜效应对于在广泛的操作温度范围内保持光束质量至关重要。
It is clear that distinctive programs result in really distinctive needs on laser attain media. Because of this, a broad variety of different crystals are utilized, and making the correct option is important for constructing lasers with optimum functionality.
材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 products laser crystal crystal development optical efficiency unusual earth ions transition team ions
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With That idea, a person does not require an extra saturable absorber crystal, to make sure that 1 may make extra compact Q-switched laser setups with lessen inside parasitic losses. Having said that, unwanted Uncomfortable side effects may also come about, for instance acquiring unwanted valence states from the involved ions or Electrical power transfers.
人造红宝石激光晶体是首次实现激光输出的材料。可用焰熔法、提拉法或助熔剂法生产单晶。用提拉法容易获得大尺寸优质晶体。